DPF Restriction — Forced Limited Power
The DPF restriction has reached a level that forces the ECU to limit engine power. The driver must allow a forced regeneration or have the filter serviced before normal power is restored.
Affected components
- Diesel particulate filter
- Dpf differential pressure sensor
Common causes
- High likelihood: Heavy soot load, regenerations skipped
- Medium likelihood: Ash loaded near service interval
Possible symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
- Reduced-power or limp mode may occur
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.